Based on the original 1860 formula for Napiers Rosemary Hair Tonic. Duncan Napier formulated his famous Rosemary Hair Tonic in our Bristo Place Edinburgh store. Today Napiers Herbstrong Shampoo Tonic combines organic rosemary extract with 12 natural herbs specifically selected to support healthy hair. With a light citrus scent, Herbstrong gives a daily lift to both your mind and hair.  Directions: Gently massage into wet hair creating lather, leave for a minute before rinsing and repeating. Use daily and for best results for 8 weeks minimum. Cautions: Avoid contact with eye area. If contact with eye is made rinse gently. Not suitable for children under 6 years of age.